JP2006251784A - Multi-pattern bright sled and bright multi-pattern product using the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a multi-pattern bright sled with which specific bright design and optical effect, such as a hologram and diffraction grating, can be obtained and/or security is obtained, and which is excellent in the sense of unity with a paper sheet, is easy to manufacture, and is low in cost. <P>SOLUTION: The multi-pattern bright sled comprises cutting a multi-pattern bright film comprised of at least a first reflective layer on a first relief forming layer and a second reflective layer on a second relief forming layer and prepared by laminating the first reflective layer on the first relief forming layer and the second reflective layer on the second relief forming layer via or without via an adhesive layer to a fine width, varies in the relief shape formed in the first relief forming layer and the second relief forming layer and is preferably 4 to 40 μm in the thickness over the entire part. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a multi-design glitter thread, and more specifically, a multi-design glitter thread having a plurality of glitter designs, having a unique design and / or security, and a plurality of glitter multi-uses using the same. It relates to a pattern formation.

In the present specification, “ratio”, “part”, “%” and the like indicating the composition are based on mass unless otherwise specified, and the “/” mark indicates that they are integrally laminated.
In addition, “brilliance” is a micro-order relief shape in which the relief shape is a hairline pattern, a line pattern, a mat pattern, a hologram and / or a diffraction grating. This refers to the effect of having a good design.
Furthermore, “the first base material 11A and the second base material 11B” are collectively referred to as “base material 11”, and the same applies to the other layers.
Furthermore, as defined in JIS-K6900-1994 for a sheet or film, a sheet is thin and generally refers to a flat product whose thickness is small with respect to length and width, and film is compared to length and width. A thin flat product with a very small thickness and an arbitrarily limited maximum thickness, usually supplied in the form of a roll. Therefore, it can be said that a sheet having a particularly thin thickness is a film, but the boundary between the sheet and the film is not clear and is difficult to distinguish clearly. Therefore, in this specification, the term “film” includes both the sheet and the film. Is defined.

  (Main application) Using the multi-design glitter thread of the present invention and the multi-design glitter thread, at least a part of the multi-design glitter thread is transferred to the transfer object by sticking or squeezing it. The main applications of the glittering multiple-pattern formation are, for example, banknotes, stock certificates, securities, certificates, gift certificates, checks, bills, admission tickets, passbooks, gift certificates, boarding tickets, car horse tickets, stamps, stamps, Appreciation tickets, admission cards, passports, tickets such as tickets, cash cards, credit cards, ID cards, prepaid cards, members cards, IC cards, optical cards, greeting cards, postcards, business cards, driver's licenses, Various certificates such as passports, certification photographs, cartons, cases, packaging materials such as soft packaging materials, bags, forms, envelopes, tags, passports, cosmetics, arms In total, there is such as brand accessories such as lighters. However, it is not particularly limited as long as it is a use that requires a special design and / or security with glitter.

(Background Art) Conventionally, since vouchers, cards, various certificates, etc. have qualifications and certain economic value and effects, they are constantly counterfeited, altered and illegally used. In particular, the accuracy of color copiers is remarkably improved, making it easy to forge various media.
In order to prevent this, various forgery prevention means are provided. Transfer foils with relief, especially holograms and diffraction gratings, have a design that can express unique decorative images and three-dimensional images, and these holograms and diffraction gratings require advanced manufacturing techniques and cannot be easily manufactured. Therefore, it is used to improve security to prevent forgery.
However, these glitters are only on one side, and in order to further improve design and security, there is no multi-design glitter thread with multiple designs, excellent sense of unity with the paper, and easy manufacture And low cost.

(Prior Art) Conventionally, it has been known that a forgery prevention paper is provided with a window so that a thread having a hologram can be seen from both front and back surfaces (for example, see Patent Document 1). However, although it can be observed from both sides, there is a problem that the hologram pattern is single.
Also known is a double-sided glitter hologram decoration thread that cuts two laminated holographic films with a metal vapor-deposited film on one side and a laminated film laminated with an adhesive with the metal vapor-deposited film on the inside. (For example, refer to Patent Document 2). However, in order to eliminate the difference in color development and three-dimensionality between the front and back, and to prevent corrosion of the metal thin film, two films of a single design are back-to-back in order to eliminate a problem completely different from the problem of the present application It is a double-sided glittering hologram decorative yarn with a metal thin film sandwiched between films, and two of the same design are used from the examples, and it is clear that the same design is used.
Furthermore, a transfer foil having two relief forming layers on one side is known (for example, see Patent Document 3). However, since the two relief forming layers are a combination of a transparent holo and a metal holo, the two holograms are observed from one side.
Furthermore, the present applicant has also disclosed an anti-counterfeit paper provided with an exposed portion and a covering portion that intermittently expose the glitter thread from the base paper (see, for example, Patent Document 4). However, it is possible to determine whether it is a counterfeit product without looking at the end face of the paper, and at the same time, to make it difficult for the glittering thread to peel off from the base paper.
None of the prior art describes or suggests that the front and back surfaces have different patterns of glitter.

Japanese Patent Laid-Open No. 2001-172897 Japanese Patent Application Laid-Open No. 06-257028 Japanese Patent Application Laid-Open No. 07-199781 JP-A-10-71759

  Accordingly, the present invention has been made to solve such problems. Its purpose is to provide two different glitter patterns and / or patterns to obtain a unique glitter design such as a hologram or a diffraction grating, an optical effect, and / or security. It is an object to provide a multi-pattern glittering thread that is excellent in bodily sensation, easy to manufacture and low in cost. And it is providing the glitter multiple design formation using this.

In order to solve the above-mentioned problems, a multi-design glittering thread according to the invention of claim 1 has at least a first design of glitter and a plurality of designs having a second design of glitter different from the first design. The glittering film is cut into a narrow width.
A plurality of design glitter threads according to the invention of claim 2 are: a first glitter film having at least a first substrate, a first relief forming layer and a first reflective layer; and at least a second substrate and a second relief forming layer. And a second glittering film having a second reflective layer, the first reflective layer surface and the second reflective layer surface are laminated via an adhesive layer, and the first relief forming layer and the second relief forming layer are laminated. A plurality of design glitter films having different relief shapes are cut into narrow widths.
A multi-pattern glitter thread according to the invention of claim 3 includes a first glitter film having at least a first substrate, a first relief forming layer and a first reflective layer, and at least a second substrate and a second relief forming layer. And a second glittering film having a second reflective layer, wherein the first base material surface and the second base material surface are laminated via an adhesive layer, and the first relief forming layer and the second relief forming are laminated. A plurality of design glitter films having different relief shapes formed in the layers are cut into narrow widths.
The multi-pattern glitter thread according to the invention of claim 4 includes a first glitter film having at least a first substrate, a first relief forming layer and a first reflective layer, and at least a second substrate and a second relief forming layer. And a second glittering film having a second reflective layer, the first reflective layer surface and the second base material surface are laminated via an adhesive layer, and the first relief forming layer and the second relief forming layer are laminated. A plurality of design glitter films having different relief shapes are cut into narrow widths.
The multi-pattern glittering thread according to the invention of claim 5 has at least a first relief forming layer and a first reflecting layer on one surface of the first base material and the first base material, and on the other surface. A narrow multi-design glitter film having at least a second relief forming layer and a second reflective layer and having different relief shapes formed on the first relief forming layer and the second relief forming layer; It was made to be cut into pieces.
The multi-pattern glittering thread according to the invention of claim 6 has a first base material and at least a first relief forming layer and a first reflective layer on one surface of the first base material, and further comprising the first base material. A plurality of design glitter films having different relief shapes formed on the first relief forming layer and the second relief forming layer, wherein at least a second relief forming layer and a second reflecting layer are provided on the reflecting layer surface. It is made to be cut into narrow pieces.
The multi-design glitter thread according to the invention of claim 7 is such that the design of the first design and the second design is a hairline design, a line design, a mat design, a hologram and / or a diffraction grating. .
The multi-design glittering thread according to the invention of claim 8 is such that the entire thickness is 4 to 40 μm.
A multi-design glittering thread according to any one of claims 1 to 8, wherein the multi-splitter glitter thread according to the invention of claim 9 is provided on at least a part of the base paper. This is what I did.
A multi-design glittering thread according to any one of claims 1 to 8, wherein the multi-splitter glitter thread according to the invention of claim 10 is used to attach the multi-design glitter thread to at least one surface of a base paper. It is made to be made on the surface.

According to the first to sixth aspects of the present invention, a multi-design glitter thread having a plurality of glitter designs is provided.
According to the present invention of claim 7, the design characteristics that can express a unique decorative image and a three-dimensional image with a relief shape such as a glitter, particularly a hologram and a diffraction grating, and the hologram and the diffraction grating require advanced manufacturing technology. Since it cannot be easily manufactured, a multi-design glittering thread with high security is provided to prevent forgery.
According to the eighth aspect of the present invention, in addition to the effects of the first to seventh aspects, a multi-design glittering thread excellent in unity with the paper is provided.
According to the present invention of claims 9 to 10, a plurality of glitters, in particular, a design property capable of expressing a unique decorative image or a three-dimensional image by a relief shape such as a hologram or a diffraction grating, and a hologram or diffraction grating is an advanced manufacturing technique. Therefore, it is impossible to manufacture easily, and thus a glittering multiple-pattern formed article with high security is provided for preventing forgery.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a cross-sectional view of a multi-pattern glitter thread showing one embodiment of the present invention.
FIG. 2 is a cross-sectional view of a multi-pattern glitter thread showing one embodiment of the present invention.
FIG. 3 is a cross-sectional view of a multi-pattern glitter thread showing one embodiment of the present invention.
FIG. 4 is a cross-sectional view of a multi-pattern glitter thread showing one embodiment of the present invention.
FIG. 5 is a cross-sectional view of a multi-pattern glitter thread showing one embodiment of the present invention.
FIG. 6 is a cross-sectional view of a multi-pattern glitter thread showing one embodiment of the present invention.
FIG. 7 is a cross-sectional view of a multi-pattern glitter thread showing one embodiment of the present invention.
FIG. 8 is a plan view and AA cross-sectional view of a glittering multi-pattern forming product according to one embodiment of the present invention.

(Multi-pattern glitter thread) The basic structure of the multi-pattern glitter thread 10 of the present invention is at least the first relief forming layer 15A (having the first relief shape 16A) / the first reflective layer 17A, and the first 2 reflection layer 17B / 2nd relief formation layer 15B (it has 2nd relief shape 16B), and the 1st relief shape 16A and the 2nd relief shape 16B should just differ. The first relief shape 16A shows the first design, the second relief shape 16B shows the second design, and the glitter design of the first design and / or the second design is not particularly limited as long as it is glitter, and 1 part, The entire surface or a combination of multiple symbols may be used. The relief shape is provided on the reflective layer 17 surface.
In the present specification, two brilliant symbols are mainly described, but two or more plural symbols may be used. In the case of a plurality of brilliant symbols, the brilliant symbols are repeated and omitted. As the two or more patterns, for example, the third relief forming layer 15C / the third reflecting layer 17C / the first relief forming layer 15A / the first reflecting layer 17A / the adhesive layer 19 / the second reflecting layer 17B / the second relief. Forming layer 15B, third relief forming layer 15C / third reflecting layer 17C / first relief forming layer 15A / first reflecting layer 17A / adhesive layer 19 / second reflecting layer 17B / second relief forming layer 15B / fourth reflecting. By adopting a layer structure of layer 17D / fourth relief forming layer 15D, three or four patterns can be obtained. In this case, if the third reflective layer 17C and the fourth reflective layer 17D are transparent reflective layers, it is possible to obtain a glittering thread having a rich design. Also, it should be intentionally made translucent and opaque to improve security.

(Design Matching Configuration) The first and / or second layer configuration is not particularly limited. For example, the first relief forming layer 15A (having the first relief shape 16A) / first reflective layer as shown in FIG. 17A / adhesive layer 19 / second reflective layer 17B / second relief forming layer 15B (having a second relief shape 16B).
Further, as shown in FIG. 2, the first glitter film 10A (first substrate 11A / first primer layer 13A (if necessary) / first relief forming layer 15A (having the first relief shape 16A)) / First reflective layer 17A) and second glittering film 10B (second reflective layer 17B / second relief forming layer 15B (having second relief shape 16B) / second primer layer 13B (if necessary) / second A layer structure in which the first reflective layer 17A surface and the second reflective layer 17B surface are laminated with the adhesive layer 19 with the two base materials 11B) is preferable.
The base material may be removed. Although not shown, the first base material 11A / first relief forming layer 15A (having the first relief shape 16A) / first reflective layer 17A / adhesive layer 19 / second reflective A layer configuration of layer 17B / second relief forming layer 15B (having the second relief shape 16B) may be employed. Furthermore, when both the first base material 11A and the second base material 11B are removed, the configuration of FIG. 1 is obtained. The substrate can be removed by removing one side and then making the paper, or removing the other after the making. Instead of paper making, it may be appropriately bonded by using an adhesive or the like.

(Substrate alignment structure) As shown in FIG. 3, the first substrate 11A surface and the second substrate 11B surface of the first glitter film 10A and the second glitter film 10B are laminated by the adhesive layer 19. A layered structure may be used.
Further, as shown in FIG. 4, the first glitter film 10A (first base material 11A / first relief forming layer 15A (having the first relief shape 16A) / first reflective layer 17A), and second glitter. First reflective layer with film 10B (second base material 11B / second relief forming layer 15B (having second relief shape 16B) / second reflective layer 17B / second protective layer 25B (if necessary)) A layer configuration in which the 17A surface and the second base material 11B surface are laminated with an adhesive layer 19 may be employed.

(Double-sided two-pattern configuration) As shown in FIG. 5, the first relief forming layer 15A (having the first relief shape 16A) / first reflective layer 17A / first protective layer on one surface of the first substrate 11A 25A (if necessary) is provided, and the second relief forming layer 15B has the second relief shape 16B on the other surface / second reflective layer 17B / second protective layer 25B (if necessary) may be provided. Good.
3 illustrates the printing 27, the first protective layer 25A and the second protective layer 25B, FIG. 4 illustrates the second protective layer 25B, and FIG. 5 illustrates the first protective layer 25A and the second protective layer 25B. However, the printing, protective layer, other substrate, and / or other layer may be provided, and the position where the layer is provided may be one or more of the interlayer and / or the surface.

As shown in FIG. 6, the first relief forming layer 15A (having the first relief shape 16A) / the first reflection layer 17A is provided on the first base material 11A, and the first reflection layer 17A is provided. Further, a second relief forming layer 15B (having a second relief shape 16B) / second reflective layer 17B / second protective layer 25B (if necessary) may be provided on the surface.
As shown in FIG. 7, instead of the second protective layer 25B having the configuration of FIG. 6, an adhesive layer 21B can be provided and the second support base material 30B can be laminated. Thereby, a 2nd support base material works as a protective layer, and can improve the durability of a reflective layer more.

  (Material and Layer Formation) Next, the material of the base material and the layer and the formation of the layer will be described. The first base material 11A and the second base material 11B (base material 11 together), the first relief forming layer 15A. And the second relief forming layer 15B (together the relief forming layer 15), the first reflective layer 17A and the second reflective layer 17B (together the reflective layer 17), the first protective layer 25A and the second protective layer 25B (together protected) The layer 25) and the adhesive layers 19, 21B may be the same material, formation method and thickness, or may be different. In the case of three or more symbols, the description is omitted, but the same applies to the third relief forming layer 15C, the fourth relief forming layer 15D, the third reflecting layer 17C, and the fourth reflecting layer 17D.

(Substrate) As the material of the substrate 11, various materials can be applied depending on the use as long as they have heat resistance, mechanical strength, mechanical strength to withstand manufacturing, solvent resistance, and the like. For example, polyester resins such as polyethylene terephthalate, polybutylene terephthalate, polyethylene naphthalate, polyethylene terephthalate-isophthalate copolymer, or terephthalic acid-cyclohexanedimethanol-ethylene glycol copolymer, nylon (trade name) 6, nylon ( Product name) 66, nylon (product name) 610, or polyamide resin such as nylon (product name) 12, polyolefin resin such as polyethylene, polypropylene, polybutene, or polymethylpentene, cyclic polyolefin resin such as polynorbornene, poly Vinyl resins such as vinyl chloride, (meth) acrylic resins such as polyacrylate, polymethacrylate, or polymethyl methacrylate, polyimide, polyamideimide, Engineering such as imide resins such as polyetherimide, polyarylate, polysulfone, polyethersulfone, polyphenylene ether, polyphenylene sulfide (PPS), polyaramid, polyetherketone, polyethernitrile, polyetheretherketone, or polyethersulfite Resin, polystyrene, high-impact polystyrene, AS resin, or styrene resin such as ABS resin, polyvinyl alcohol resin or polyvinyl alcohol resin such as ethylene-vinyl alcohol copolymer, ethylene-tetrafluoroethylene copolymer, three Fluoroethylene chloride, tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer, vinylidene fluoride, vinyl fluoride, or perfluoro-perfluoropropylene-perf Fluorine resin such as vinyl ether copolymer, cellophane, cellulose triacetate, cellulose diacetate, cellulose film such as nitrocellulose, polycarbonate resin, saponified ethylene-vinyl acetate copolymer, polyvinyl butyral resin, polyvinyl acetate Resin, acetal resin, and the like.
The substrate 11 may be a copolymer resin containing these resins as a main component, a mixture (including an alloy), or a laminate composed of a plurality of layers. The substrate 11 may be a stretched film or an unstretched film, but a film stretched in a uniaxial direction or a biaxial direction is preferable for the purpose of improving the strength. The substrate 11 is used as a film, sheet or board formed of at least one layer of these resins.

  In addition, the total thickness of the multi-design glitter thread 10 of the present invention is cut into a thin width and further made into a paper base material. Therefore, it is necessary to make the thread thickness extremely thin. Yes, about 4 to 40 μm, preferably 8 to 30 μm, more preferably 10 to 24 μm. If the thickness is less than 4 μm, the mechanical strength is insufficient, the thread is cut during cutting or paper making, and the yield is low and the productivity is low. When the thickness is 40 μm or more, the papermaking machine is suitable for papermaking, but unevenness occurs in the paper that is made, the threads easily peel from the paper base material, and there is no sense of unity as the paper. There is a drawback that it is easy to forge, such as attaching another glittering material to the paper. Most of the total thickness of the multi-pattern glittering thread 10 is the thickness of the base material 11, and the thicknesses of the first base material 11A and the second base material 11B may be the same or different. The same thickness is preferable from the viewpoint of reducing curling when laminated.

  Usually, since there are two base materials 11 in a multi-design glitter thread, the thickness of one base material 11 must be extremely thin. As thickness of this base material 11, it is about 2-20 micrometers, Preferably it is 4-15 micrometers, More preferably, it is 5-12 micrometers. Polyethylene terephthalate and polyethylene naphthalate having good mechanical strength and good heat resistance are suitable even in such a thin state.

  (Primer layer) Further, the base material 11 has a primer layer 13 or a corona discharge treatment, a plasma treatment, an ozone gas treatment, a flame as needed to improve the adhesion between the layers on the surface on which the layer is formed. Easy adhesion treatment such as treatment, pre-heat treatment, dust removal treatment, alkali treatment and the like may be performed. In particular, the primer layer 13 includes, for example, a polyurethane resin, a polyester resin, a polyamide resin, an epoxy resin, a phenol resin, a polyvinyl chloride resin, a polyvinyl acetate resin, a vinyl chloride-vinyl acetate copolymer, Acid-modified polyolefin resin, copolymer of ethylene and vinyl acetate or acrylic acid, (meth) acrylic resin, polyvinyl alcohol resin, polyvinyl acetal resin, polybutadiene resin, rubber compound, petroleum resin, alkyl titanate A compound based on polyethylene, a compound based on polyethyleneimine, an isocyanate based compound, starch, casein, gum arabic, cellulose derivatives, waxes and the like can be used.

  One or more of the above-mentioned resins or monomers, oligomers, or prepolymers thereof as a main component, and if necessary, for example, various stabilizers, fillers, reaction initiators, curing agents or crosslinking agents, etc. These additives can be used alone or in combination, or a combination of a main agent and a curing agent can be used, such as a one-component curable type or a two-component curable type. These resins are appropriately dissolved or dispersed in a solvent and sufficiently kneaded as necessary to prepare a coating agent composition (ink, coating solution), which is applied to the substrate 11 by a known coating method. The primer layer 13 is obtained by drying or reacting by aging treatment after drying or drying. The primer layer 13 has a thickness of about 0.05 to 10 μm, preferably 0.1 to 5 μm, and more preferably 0.2 to 1 μm. Examples of the coating method include coating methods such as a roll coating method, a gravure coating method, a spray coating method, an air knife coating method, a kiss coating method, and others. The primer layer 13A and the primer layer 13B may be the same material and thickness, or may be different.

  (Relief shaping) The relief shape 16 is shaped (also referred to as replication) on the surface of the relief forming layer 15. As the shaping method, a “hot pressing method” called by those skilled in the art can be applied. First, in the hot pressing method, after forming the relief forming layer 15 on the substrate 11, a stamper (metal plate or resin plate) on which the relief is formed is pressure-bonded (so-called embossing) to the surface of the relief forming layer 15. Then, the stamper is peeled off after the relief is shaped and copied to the relief forming layer 15.

  (Relief forming layer) The material of the relief forming layer 15 used in the hot pressing method is a thermoplastic resin such as polyvinyl chloride, acrylic resin (eg, polymethyl methacrylate), polystyrene, polycarbonate, and unsaturated polyester, melamine, Curing thermosetting resins such as epoxy, polyester (meth) acrylate, urethane (meth) acrylate, epoxy (meth) acrylate, polyether (meth) acrylate, polyol (meth) acrylate, melamine (meth) acrylate, and triazine acrylate , UV-curable resin such as a composition in which an unsaturated ethylene monomer and an unsaturated ethylene oligomer are appropriately mixed with a sensitizer added, or the above thermoplastic resin and thermosetting Resin mixture and radical polymerization Thermoformable material having an unsaturated group may be used. In particular, thermosetting resins excellent in durability such as chemical resistance, light resistance and weather resistance, and ionizing radiation curable resins such as ultraviolet rays and electron beams are preferable. Furthermore, a material excellent in heat resistance and pressure resistance is preferable. That is, in the invention of Claims 2-4, the relief forming material which can endure the heat and pressure at the time of bonding a 1st glitter film and a 2nd glitter film is preferable. In the inventions according to claims 5 to 6, after the first relief forming layer is formed, the second relief forming layer is further formed on the opposite surface or the same surface of 11A of the first base material. The material of the layer is preferably a material that can withstand heat and pressure when a relief is formed on the second relief forming layer. Examples of the ionizing radiation curable resin having such characteristics include those obtained by curing an ionizing radiation curable resin such as an epoxy-modified acrylate resin, a urethane-modified acrylate resin, and an acrylic-modified polyester, and preferably a urethane-modified acrylate resin. It is.

  A preferable one of the relief forming layer 15 is a cured product obtained by curing an uncured ionizing radiation curable resin composition mainly composed of a urethane-modified acrylic resin represented by the general formula (a). Specifically, the photocurable resin composition disclosed in Japanese Patent Application Laid-Open No. 2000-273129 by the present applicant can be applied, and the photocurable resin composition A described in the above specification can be applied as described in this specification. It is also used in the examples, and is described as “ionizing radiation curable resin composition A”.

（ここで、６個のＲ₁は夫々互いに独立して水素原子またはメチル基を表わし、Ｒ₂は炭素数が１〜２０個の炭化水素基を表わす。ｌ、ｍ、ｎ、ｏ及びｐの合計を１００とした場合に、ｌは２０〜９０、ｍは０〜８０、ｎは０〜５０、ｏ＋ｐは１０〜８０、ｐは０〜４０の整数である。ＸおよびＹは直鎖状または分岐鎖状のアルキレン基を表わし、Ｚはウレタン変性アクリル樹脂を改質するための基を表し、好ましくは嵩高い環状構造の基を表わす。）

(Here, six R _{1 s} each independently represent a hydrogen atom or a methyl group, and R ₂ represents a hydrocarbon group having 1 to 20 carbon atoms. Each of l, m, n, o and p L is 20 to 90, m is 0 to 80, n is 0 to 50, o + p is 10 to 80, p is an integer of 0 to 40, and X and Y are linear or Represents a branched alkylene group, Z represents a group for modifying a urethane-modified acrylic resin, and preferably represents a group having a bulky cyclic structure.)

Another preferred relief forming layer 15 is a reaction product of an isocyanate compound having a melting point of 40 ° C. or higher and a (meth) acrylic compound capable of reacting with an isocyanate group, and has a softening point of 40 ° C. or higher. It is a resin containing things.
That is, (1) a reaction product of an isocyanate compound having a melting point of 40 ° C. or higher and a (meth) acryl compound having a (meth) acryloyl group and capable of reacting with the isocyanate group, and having a softening point of 40 (2) an isocyanate compound having a melting point of 40 ° C. or higher, a (meth) acrylic compound having a (meth) acryloyl group and capable of reacting with the isocyanate group, and a (meth) acryloyl group And a cured product of an ionizing radiation curable resin containing a compound having a softening point of 40 ° C. or higher. The isocyanate compound is a compound having an isocyanate group bonded to a non-aromatic hydrocarbon ring, a trimer of isophorone diisocyanate, or a reaction product of isophorone diisocyanate and an active hydrogen-containing compound, and (meth) The acrylic compound is preferably (meth) acrylic acid or a (meth) acrylate having a hydroxyl group. Specifically, a photocurable resin disclosed in Japanese Patent Application Laid-Open No. 2001-329031 can be applied, and in the examples of this specification, it is expressed as “ionizing radiation curable resin composition B”.

  (Formation of relief forming layer) As a method of providing the relief forming layer 15, for the above-mentioned materials, for example, ionizing radiation curable resins of urethane-modified acrylic resins, a photopolymerization initiator, photosensitization may be used as necessary. Agents, photopolymerization accelerators, polyfunctional monomers and oligomers, mold release agents, polymerization inhibitors, viscosity modifiers, surfactants, antifoaming agents, and other auxiliary agents, as well as silicone, styrene-butadiene rubber, etc. A molecular body etc. may be mix | blended and these are melt | dissolved or disperse | distributed to an organic solvent, or it is set as the relief forming layer 15 composition (ink) of a non-solvent form without adding a solvent. The relief forming layer 15 composition (ink) may be applied by, for example, a roll coating method, a gravure coating method, or any other known coating method or printing method, and dried as necessary. The thickness of the relief forming layer 15 is usually about 0.1 to 10 μm, preferably 0.2 to 5 μm, and more preferably 0.5 to 2 μm. If the thickness is less than 0.5 μm, the glitter (brightness) is remarkably reduced, and if it exceeds 2 μm, the luminance is sufficient, but it is disadvantageous in terms of cost.

(Relief shape) The relief shape 16 is a concavo-convex shape and is not particularly limited, but preferably has a fine concavo-convex shape and exhibits functions such as light diffusion, light scattering, light reflection, and light diffraction. A Fourier transform, a lenticular lens, a light diffraction pattern, and a moth eye are formed. Further, although it does not have a light diffraction function, it may be a hairline pattern, a mat pattern, a line pattern, an interference pattern, or the like that expresses a unique glitter.
As the light diffraction concavo-convex pattern, a hologram or diffraction grating in which interference fringes due to light interference between object light and reference light are recorded in a concavo-convex pattern can be applied. Holograms include laser reproduction holograms such as Fresnel holograms, white light reproduction holograms such as rainbow holograms, color holograms utilizing these principles, computer generated holograms (CGH), and holographic diffraction gratings.
The design described in this specification refers to a design formed by combining one or more of these various concavo-convex patterns. For example, a text pattern such as “abc” or “Security”, a sleek pattern, a polka dot pattern, and the like. A geometric pattern called as well as a pattern formed by a combination of a pattern such as a flower or a bird, which was created by simulating a pattern such as a flower, a bird, etc. were visualized by a combination of the above-mentioned hologram or diffraction diffraction pattern consisting of a diffraction grating. Say a picture. Moreover, a multiple symbol means the symbol which cannot be formed only by using these symbols once and once, and usually refers to a symbol produced by using two or more symbols multiple times. However, for example, even when “Security” can be observed from both the front and back by bonding the vapor-deposited surfaces of the glitter film having a pattern observed as “Security” from the base material surface, the plural design glitter of the present invention is used. Sex thread.

  Examples of the diffraction grating include a holographic diffraction grating using a hologram recording means. In addition, an arbitrary diffraction light can be obtained based on a calculation by mechanically creating a diffraction grating using an electron beam drawing apparatus or the like. A diffraction grating can also be mentioned. Further, a mechanical cutting method may be used. These holograms and / or diffraction gratings may be recorded single or multiple, or may be recorded in combination. These original plates can be prepared by known materials and methods. Usually, a laser beam interference method using a glass plate coated with a photosensitive material, an electron beam drawing method on a glass plate coated with an electron beam resist material, a machine A cutting method can be applied.

  (Relief shaping) The relief shape 16 is shaped (also referred to as replication) on the surface of the relief forming layer 15. In the hot pressing method, a stamper (metal plate or resin plate) on which a relief is formed is pressure-bonded to the surface of the relief forming layer 15 (so-called embossing), and the relief is applied to the relief forming layer 15. After stamping and replicating, the stamper is peeled off. Further, it is also possible to form a reflective layer 17 on the surface of the relief forming layer 15 and then press and mold a stamper on the surface. Depending on the material of the relief forming layer, the relief is replicated by irradiating ionizing radiation during embossing and then peeling the stamper. Commercial duplication can be carried out in a long form, allowing continuous duplication work. Further, a relief can be reproduced more commercially by using a cylindrical stamper prepared by attaching a stamper to a cylinder or by directly engraving a relief on the cylinder.

  (Relief Curing) When an ionizing radiation curable resin is used as the relief forming layer 15, the ionizing radiation curable resin is cured by irradiating ionizing radiation during or after embossing with a stamper. The ionizing radiation curable resin becomes an ionizing radiation curable resin (relief forming layer 15) when cured (reacted) by irradiation with ionizing radiation after the relief is formed. The ionizing radiation may be classified according to the quantum energy of the electromagnetic wave, but in this specification, all ultraviolet rays (UV-A, UV-B, UV-C), visible light, gamma rays, X-rays, electrons It is defined as including a line. Accordingly, ultraviolet (UV), visible light, gamma ray, X-ray, electron beam, or the like can be applied as ionizing radiation, but ultraviolet (UV) is preferable, and ultraviolet having a wavelength of 300 to 400 nm is optimal. An ionizing radiation curable resin that is cured by ionizing radiation may contain a photopolymerization initiator and / or a photopolymerization accelerator in the case of ultraviolet curing, and may not be added in the case of high energy electron beam curing. Can be cured even with thermal energy. When a thermosetting resin is used as the relief forming layer 15, it may be cured by aging under a temperature and humidity environment according to the curing conditions of the thermosetting resin to be used.

  (Reflective layer) The reflective layer 17A and the reflective layer 17B (reflective layer 17) are formed by providing the reflective layer 17 on the relief surface of the relief forming layer 15 provided with a predetermined relief structure, thereby reflecting and / or diffracting the relief. In order to enhance the effect, it is not particularly limited as long as it is higher than the reflectance of the relief forming layer 15. For example, a metal or a transparent metal compound having a difference in refractive index can be applied. The reflective layer 17 can be formed on the relief forming layer 15 before providing the relief structure. That is, a relief can be formed after forming the reflective layer 17 by appropriately selecting the material and stamper of each layer.

  The metal used for the reflective layer 17 is a metal element thin film that has a metallic luster and reflects light, such as Cr, Ni, Ag, Au, Al, etc., and oxides, sulfides, nitrides thereof, etc. A thin film may be used alone or in combination. The formation of the light-reflective metal thin film can be obtained by a vacuum thin film method such as a vacuum deposition method, a sputtering method, or an ion plating method so as to have a thickness of about 10 to 2000 nm, preferably 20 to 1000 nm. However, it can also be formed by plating. If the thickness of the reflective layer 17 is less than this range, the light is transmitted to some extent and the effect is reduced, and if it is more than that, the reflective effect is not changed, which is wasteful in cost.

Further, by using a metal compound having a substantially colorless and transparent hue and an optical refractive index different from that of the relief forming layer as the reflective layer 17, it is possible to provide glitter such as a hologram even though there is no metallic luster. Since it can be visually recognized, a glittering film such as a transparent hologram can be produced.
Examples of the transparent metal or metal compound include a thin film having a higher refractive index than that of the relief forming layer 15 and a thin film having a lower refractive index. Examples of the former include ZnS, TiO ₂ , Al ₂ O _3. , Sb ₂ S ₃ , SiO, SnO ₂ , ITO and the like, and examples of the latter include LiF, MgF ₂ and AlF ₃ . Preferably, it is a metal oxide or nitride, specifically, Be, Mg, Ca, Cr, Mn, Cu, Ag, Al, Sn, In, Te, Fe, Co, Zn, Ge, Pb, Cd , Bi, Se, Ga, Rb, Sb, Pb, Ni, Sr, Ba, La, Ce, Au, and other oxides or nitrides, and others include a mixture of two or more thereof. Also, a general light-reflective metal thin film such as aluminum can be used when it has a thickness of 200 mm or less. As with the metal thin film, the transparent metal compound is formed on the relief surface of the relief forming layer 15 by vapor deposition, sputtering, ion plating, CVD, or the like so as to have a thickness of about 10 to 2000 nm, preferably 20 to 1000 nm. It may be provided by a vacuum thin film method or the like. Further, a transparent synthetic resin having a refractive index of light different from that of the relief forming layer 15 may be used. When the refractive indexes of the adhesive layers 19 and 21B or the protective layer 25 material and the relief forming layer 15 material are sufficiently different. The adhesive layers 19 and 21B and the protective layer 25 can also serve as the reflective layer 17.

(Plural design) As described above, the glitter films 10A and 10B are obtained. According to the fifth to sixth aspects of the present invention, a plurality of design glitter films having a plurality of designs are produced by repeating the steps of producing the relief forming layer 15, the relief shape 16 and the reflective layer 17 according to the layer configuration. A plurality of design glitter threads 10 of the present invention can be obtained by appropriately slitting the design glitter film.
As described above, when a multi-pattern glittering film having a plurality of designs is produced by repeating the process of producing the relief forming layer 15, the relief shape 16 and the reflective layer 17 on one substrate, the relief is later applied. In the step of producing the relief shape 16 in the formation layer, it is necessary not to destroy the relief shape produced earlier.
Therefore, the glass relief temperature of the first relief forming material formed earlier is Tg1 (u), the glass transition temperature after curing of this material is Tg1 (h), and the second relief forming layer formed later is produced. When the glass transition temperature of the material is Tg2 (u) and the glass transition temperature after curing of this material is Tg2 (h), the first relief forming layer is cured before the relief of the second relief forming layer is formed. In addition, it is preferable that Tg1 (h)> Tg2 (u) is satisfied.
When a general thermoplastic resin is used as the material for the first relief forming layer and the material for the second relief forming layer, Tg1 (u) = Tg1 (h) = Tg1, and Tg2 (u) = When Tg2 (h) = Tg2, it is preferable that there is a relationship of Tg1> Tg2. In the case where the third, fourth and further plural relief forming layers are provided, Tg1>Tg2>Tg3> Tg4, that is, Tg1 (u)> Tg2 (u)> Tg3 (u)> Tg4 (u) Preferably there is.
However, when a curable resin is used, it is not particularly preferable that the relationship (Tg1> Tg2) is established. If a curable resin is used as the resin to be relief formed earlier, even if the Tg1 (u) before curing is low, this resin is cured after the relief formation, so that the relief is later formed on the second relief forming layer. Since it is easy to make Tg1 (h) high enough at the time of doing, it is preferable. Conversely, if a curable resin is used as the resin for relief formation later, the temperature at which the relief is formed on the second relief forming layer is sufficiently lowered, and after the second relief is formed, this resin is reduced to Tg2 (h). Curing is preferable because the durability of the product can be sufficiently increased. That is, by using a curable resin that is not cured during relief molding and can be cured after relief molding, the glass transition temperature of the resin when uncured is Tg1 (u) = Tg2 (u), or Tg1 Even if the relationship (u) <Tg2 (u) is satisfied, the relationship Tg1 (h)> Tg2 (u) can be established, and the relief formed later without destroying the shape of the relief formed earlier. Can be produced. In order to cure such a relief resin in an optimum process among all processes, an ionizing radiation curable resin is particularly preferable as the relief forming material. The same applies to the case of having a plurality of patterns of three or more layers.
If the relationship of the glass transition temperature shown above is not satisfied, it will be difficult to maintain the relief shape, cracks, whitening, etc. will occur, and sufficient brightness as a glittering multiple pattern will not be obtained.
However, the above glass transition temperature is a temperature at which the loss tangent (tan δ) in the dynamic viscoelasticity measurement has a maximum value is defined as the glass transition temperature of the resin. The measurement method of viscoelasticity uses ARES manufactured by Rheometrics as a measuring instrument, and the measurement conditions are: parallel plate 10 mmΦ, strain 1%, amplitude 1 Hz, heating rate 2 ° C./min. Then, the temperature of the resin of the sample is raised from 30 ° C. to 200 ° C. In general, the storage elastic modulus G ′ is an elastic component, which is generated by the generation of a structure such as a coil vibration or an aggregate structure in a polymer, and the loss elastic modulus G ″ is a viscous component, which is a static shear. It is equivalent to stress.tan δ is obtained by G ″ / G ′ and is an index of how much energy is absorbed when the material is deformed.
Further, in the inventions of claims 2 to 4, two or more glitter films having different designs are prepared, and the reflection layers 17A and 17B of the two glitter films 10A and 10B. The multi-pattern glittering thread 10 of the present invention is appropriately slit by slitting the multi-pattern glittering film obtained by laminating the surface, the base material 11A and the base material 11B / surface, or the reflective layer 17A and the base material 11B surface. Can be obtained. The laminating method is not particularly limited as long as it can be bonded. For example, a known method such as a dry lamination method, an extrusion lamination method, an adhesive lamination method, or a thermal lamination method can be applied. What is necessary is just to select suitably according to the combination method. The dry lamination method is preferred.
Furthermore, in the case of the layer configuration shown in FIG. 1, for example, first, after the first glitter film and the second glitter film are bonded together, the substrate 11A and the substrate 11B can be peeled off, respectively. It is. By adjusting the adhesion between the base material and the relief forming material, a thread having a layer structure shown in FIG. 1 can be produced. When the adhesive force between the substrate and the relief forming layer is too strong, the first glittering film can be obtained by using a primer layer material that lowers the adhesive force instead of the primer layer that is usually used for increasing the adhesive force. Then, after laminating the second glittering film, the respective base materials are peeled to produce a thread having a layer structure shown in FIG.

(Other Layers) In addition, in the multi-pattern glitter thread 10 of the present invention, a protective layer, a colored layer, a magnetic layer may be provided between the layers and / or the surface of the layer structure as necessary within a range where the glitter pattern can be observed. Other layers, such as printing and / or resin layers, and / or printing, primer layers, etc. may be provided.
As the protective layer, the thermoplastic resin such as acrylic resin, and the thermosetting resin such as unsaturated polyester, melamine, and epoxy urethane (meth) acrylate are used in the same manner as the constituent resin described in the relief forming layer. Cured, UV-curable resin such as a composition obtained by adding a sensitizer to a mixture of unsaturated ethylene monomer and unsaturated ethylene oligomer as appropriate, or the above thermoplastic resin and heat Mixtures of curable resins and thermoformable materials having radically polymerizable unsaturated groups can be used. In particular, thermosetting resins excellent in durability such as chemical resistance, light resistance and weather resistance, and ionizing radiation curable resins such as ultraviolet rays and electron beams are preferable.
(Other Supporting Substrate) Another substrate or layer may be further provided on the multi-pattern glittering film of the present invention obtained as described above. As another base material, it does not specifically limit, The material described regarding the base material 11 is illustrated. These synthetic resin films may be laminated by a known method such as a dry lamination method, an extrusion lamination method, an adhesive lamination method, or a thermal lamination method. For example, as shown in FIG. 7, the metal surface can be protected by providing the second support substrate 30B on the surface of the reflective layer 17B via the adhesive layer 21B.
(Adhesive) As an adhesive used for the adhesive layers 19 and 21B, a material may be appropriately selected in accordance with the above-described conventionally known lamination method. For example, when laminating by the dry lamination method, an adhesive that is cured by heat or ionizing radiation such as ultraviolet rays or electron beams can be applied. Thermosetting adhesives include two-component curable urethane adhesives, polyester urethane adhesives, polyether urethane adhesives, acrylic adhesives, polyester adhesives, polyamide adhesives, and polyvinyl acetate adhesives. An adhesive, an epoxy adhesive, a rubber adhesive, etc. can be applied. Of these, a two-component curable urethane-based adhesive is preferable. An adhesive dispersed or dissolved in a solvent is applied and dried, and two glitter films are stacked and laminated, and then the adhesive is cured by aging at 30 to 120 ° C. for several hours to several days. . An adhesive that can be cured at as low a temperature as possible so as not to destroy the already formed relief shape, preferably an adhesive that can be cured at a temperature lower than the glass transition temperature Tg (h) of the shaped relief-forming layer material, Adhesives that can be cured at temperatures lower than Tg (u) are particularly preferably used. As a film thickness of this contact bonding layer, it is about 0.1-20 micrometers (dry state), Preferably it is 1.0-5.0 micrometers.
(Surface Easy-Adhesion Layer) Further, a surface easy-adhesion layer that improves the adhesion to the paper base material may be provided on at least one surface of the plurality of design glitter threads 10, and the material of the surface easy-adhesion layer is Hydrophilic materials such as polyvinyl alcohol resins, acrylic resins, and cellulose resins are preferable. However, even if these prints and other layers are provided, the total thickness is about 4 to 40 μm, preferably 8 to 30 μm, and more preferably 10 to 24 μm.
In addition, when the glittering multiple-pattern formed product is a film substrate, a surface easy-adhesion layer that improves adhesion to the film substrate may be provided on at least one surface of the multiple-pattern glittering thread 10. As the material for the surface easy-adhesion layer, the same material as the primer layer can be preferably used.

(Glittering multiple-patterned product) The glittering multiple-patterned product 100 of the present invention can be produced by a papermaking method by embedding the multiple-patterned glittering thread 10 of the present invention, and at least the first pattern having different glittering design and It has a brilliant second pattern and has a unique design and security.
FIG. 8 shows an example of the glitter multi-pattern forming product 100 of the present invention. A multi-design glitter thread 10 formed by slitting a multi-pattern glitter film of the present invention into a narrow slit is provided on at least one surface of a base paper. An example of a gift certificate using the anti-counterfeit paper that is drawn on the surface of the anti-counterfeit paper is shown. One or a plurality of threads may be used for the anti-counterfeit paper. Moreover, only one side or both sides may be sufficient.

  (Papermaking method) Next, the papermaking method will be described. A person skilled in the paper industry calls a thread when a thin film having a certain design has a narrow stripe shape. The multi-design glitter film is slit into a narrow width of about 0.5 to 30 mm, preferably 1 to 10 mm, and the slit multi-design glitter thread is formed on the base paper 101.

(Base Paper) The base paper 101 of the anti-counterfeit paper is not particularly limited as long as it has excellent surface smoothness and heat resistance and has an appropriate strength and thickness. Paper such as paperboard and cardboard can be used. High-quality paper and coated paper having a basis weight of 100 to 200 g / m ² and excellent printability and transferability are preferred. The base paper 101 is manufactured by embedding a thread having a width of about 0.5 to 30 mm, preferably 1 to 10 mm, slit into a narrow width. In other words, wood pulp such as softwood bleached kraft pulp (NBKP), hardwood bleached kraft pulp (LBKP), softwood bleached sulfite pulp (NBSP), thermomechanical pulp (TMP), etc. and non-wood pulp made from hemp, cotton, and straw Etc. are mixed and beaten appropriately, and this is filled with filler, dry paper strength enhancer, wet paper strength enhancer, sizing agent, fixing agent, yield improver, freeness improver, antifoaming agent, dye, coloring pigment, fluorescent A suitable freeness is usually added to 400 to 250 ml C.I. S. F. Prepare a paper stock adjusted to. The paper stock is manufactured by using a well-known paper machine such as a long paper machine or a circular paper machine while feeding a narrow-width thread, and machine calendar and super calendar processing is performed as necessary. To do.

  (Observation) The multi-pattern glittering thread 10 of the present invention may be provided with a printed pattern in addition to the above configuration. Further, the thread may be embedded in the base paper, or may be half-embedded or on the surface if it is sufficiently adhered. Further, it may be partially exposed on the surface of the base paper. Further, the base paper may be partially thinned and embedded. In particular, with the partially embedded or partially thin base paper 101, the glittering symbols on both sides of the multiple symbol glittering thread 10 of the present invention can be sufficiently visually recognized. Further, in the case of burying or half-embedding, at least one of the glittering patterns cannot be visually recognized or is difficult to visually recognize, but can be observed by peeling and observing as necessary, which is within the scope of the present invention.

  (Manufacturing) The multi-design glittering thread 10 of the present invention can be manufactured easily and at low cost because any process can use existing equipment and technology. In addition, since both the manufacturing process of the glittering multi-patterned product 100 of the present invention can use existing equipment and technology, it can be manufactured easily and at low cost.

  EXAMPLES Hereinafter, although an Example and a comparative example demonstrate this invention further in detail, it is not limited to this.

Example 1
(Preparation of first glittering film) Lumirror 6CF53 (product name of PET film, manufactured by Toray Industries, Inc.) having a thickness of 6 μm was used as the substrate 11A. The above-mentioned ionizing radiation curable resin composition B was applied to one surface of the substrate 11A with a gravure reverse coater and dried at 100 ° C. to form a relief forming layer 15A having a thickness of 1 μm. Next, a stamper duplicated by the 2P method from a rainbow hologram by the two-beam method is applied to the relief forming layer surface, and is heated and pressed (embossed) between the opposing rollers, A relief consisting of a concavo-convex pattern was shaped. Immediately after shaping, it was cured by irradiating with ultraviolet rays using a high-pressure mercury lamp. An aluminum thin film having a thickness of 500 nm was formed on the relief surface of the relief forming layer 15A by a vacuum deposition method to obtain a reflective layer 17A.
(Preparation of Second Glossy Film) Lumirror 6CF53 (product name of PET film, manufactured by Toray Industries, Inc.) having a thickness of 6 μm was used as the substrate 11B. The above-mentioned ionizing radiation curable resin composition B was applied to one surface of the substrate 11B with a gravure reverse coater and dried at 100 ° C. to form a relief forming layer 15B having a thickness of 1 μm. Next, a stamper duplicated by 2P method from the diffraction grating is stuck on the relief forming layer surface to an embossing roller of a duplicating apparatus, and is heated and pressed (embossed) with an opposing roller to form a fine uneven pattern. The relief was shaped. Immediately after shaping, it was cured by irradiating with ultraviolet rays using a high-pressure mercury lamp. An aluminum thin film having a thickness of 500 nm was formed on the relief surface of the relief forming layer 15B by a vacuum deposition method to obtain a reflective layer 17B.
(Create multiple design glitter threads)
The reflective layer 17A of the first glitter film and the reflective layer 17B of the second glitter film are bonded by a known dry lamination method. A two-part curable polyurethane adhesive is applied to the surface of the reflective layer 17A of the first glittering film by a gravure coating method so that the thickness after drying becomes 1.5 μm, and then dried. The reflective layer 17B surface of the film was overlaid and pressurized, and then allowed to stand at 40 ° C. for 3 days, and then slitted to a width of 1.5 mm with a precision micro slitter machine, to give a plurality of symbols of Example 1 as narrow threads A glittering thread 10 was obtained.
The multi-design glitter thread 10 has an overall thickness of approximately 15 μm, and one surface is a hologram, and the other surface is brightly observable with a separate glitter pattern by a diffraction grating. However, even in the dark, it was possible to observe and identify at a glance. Furthermore, when copying with a color copier, there was no brightness unique to the hologram, and the hologram and copy of the thread were completely different, and authenticity could be judged at a glance.

  Example 2 A multi-pattern glittering thread 10 was obtained in the same manner as in Example 1 except that a PET film having a thickness of 4.5 μm was used as the base material 11A and the base material 11B. The multi-design glitter thread 10 has an overall thickness of approximately 12 μm, and one surface has a hologram, and the other surface has a distinct glitter pattern with a diffraction grating brightly observable. Even in the dark, it was possible to observe and identify with a glance. Furthermore, when copying with a color copier, there was no brightness unique to the hologram, and the hologram and copy of the thread were completely different, and authenticity could be judged at a glance.

  Example 3 A multi-pattern glittering thread 10 was obtained in the same manner as in Example 1 except that a PET film having a thickness of 9 μm was used as the base material 11A and the base material 11B. The multi-design glitter thread 10 has an overall thickness of approximately 21 μm, and one surface can be observed with a hologram, and the other surface can be brightly observed with a separate glitter pattern by a diffraction grating. Even in the dark, it was possible to observe and identify with a glance. Furthermore, when copying with a color copier, there was no brightness unique to the hologram, and the hologram and copy of the thread were completely different, and authenticity could be judged at a glance.

  (Example 4) A multi-pattern glittering thread 10 was obtained in the same manner as in Example 1 except that a PET film having a thickness of 6 µm was used as the base material 11A and a PET film having a thickness of 12 µm was used as the base material 11B. . The multi-design glitter thread 10 has an overall thickness of approximately 21 μm, and one surface can be observed with a hologram, and the other surface can be brightly observed with a separate glitter pattern by a diffraction grating. Even in the dark, it was possible to observe and identify with a glance. Furthermore, when copying with a color copier, there was no brightness unique to the hologram, and the hologram and copy of the thread were completely different, and authenticity could be judged at a glance.

  Example 5 A multi-pattern glitter thread was obtained in the same manner as in Example 1 except that a PET film having a thickness of 16 μm was used as the base material 11A and the base material 11B. The multi-design glitter thread 10 had an overall thickness of approximately 35 μm, and a bright glitter pattern on one surface could be observed brightly on the other surface and a diffraction grating on the other surface.

  Reference Example 1 A multi-pattern glitter thread was obtained in the same manner as in Example 1 except that a PET film having a thickness of 25 μm was used as the base material 11A and the base material 11B.

  (Example 6) A multi-pattern glittering thread 10 was obtained in the same manner as in Example 1 except that as the reflective layer 17A, a titanium oxide thin film having a thickness of 100 nm was formed by sputtering. The multi-design glitter thread 10 has an overall thickness of approximately 15 μm, and a bright and holographic pattern with a diffraction grating is observed on one surface, and a separate transparent glitter pattern with a diffraction grating is brightly observed on the other surface. We were able to. In addition, when copying with a color copier, there is no sparkle peculiar to one program, completely different from the hologram and copy of the thread, and the other diffraction grating also has no peculiar sparkle, and both sides can be judged at a glance. It was.

  (Example 7) A multi-pattern glittering thread 10 was obtained in the same manner as in Example 1 except that the ionizing radiation curable resin composition A was used as the coating liquid for the relief forming layers 15A and 15B. . The multi-design glitter thread 10 had an overall thickness of approximately 15 μm, and a bright glitter pattern on one surface could be observed brightly on the other surface and a diffraction grating on the other surface.

  (Example 8) Polyester resin was applied with a gravure reverse coater to the surface on which the relief forming layer 15 of the base material 11A and the base material 11B was formed, and dried at 100 ° C., and a primer layer 13A having a thickness of 0.5 μm and Except for forming 13B, a multi-pattern glittering thread 10 was obtained in the same manner as in Example 1. The multi-design glitter thread 10 has an overall thickness of approximately 16 μm, one surface is a hologram, the other surface is a separate transparent glitter pattern by a diffraction grating, and the interlayer can be brightly observed. Since it was firmly bonded, peeling and the like hardly occurred and durability was good.

  (Example 9) Polyester resin was applied with a gravure reverse coater to the surface of the base material 11A and the base material 11B on which the relief forming layer 15 was formed, and dried at 100 ° C., and a primer layer 13A having a thickness of 0.5 μm and Except for forming 13B, a multi-pattern glittering thread 10 was obtained in the same manner as in Example 2. The multi-design glitter thread 10 has an overall thickness of approximately 13 μm, one surface is a hologram, and the other surface is a separate transparent glitter pattern with a diffraction grating, which can be observed brightly, and between the layers. Since it was firmly bonded, peeling and the like hardly occurred and durability was good.

  (Example 10) The first substrate 11A of the first glitter film and the second substrate 11B of the second glitter film prepared in Example 1 are bonded together by a known dry lamination method. . After applying the two-component curable polyurethane adhesive to the surface of the first substrate 11A of the first glittering film by a gravure coating method so that the thickness after drying is 1.5 μm and drying, The surface of the second substrate 11B of the glittering film was superposed and pressurized, and then allowed to stand at 40 ° C. for 3 days, and then slitted to a width of 1.5 mm with a precision micro slitter machine to form a narrow thread. Ten multi-pattern glitter threads 10 were obtained. The multi-design glitter thread 10 has an overall thickness of approximately 15 μm, and one surface is a hologram, and the other surface is brightly observable with a separate glitter pattern by a diffraction grating. However, even in the dark, it was possible to observe and identify at a glance. Furthermore, when copying with a color copier, there was no brightness peculiar to the hologram, and the hologram and copy of the multi-pattern glitter film were completely different, and the authenticity could be judged at a glance.

  Example 11 On the reflective layer 17B of the first glitter film prepared in Example 1 and the second glitter film prepared in Example 1, the ionizing radiation curable resin composition described above was used. The reflection of the first glittering film was performed using the second glittering film with a protective layer formed by coating the product A with a gravure reverse coater and drying at 100 ° C. to form a protective layer 25B having a thickness of 0.5 μm. Bonding is performed by a known dry lamination method so that the layer 17A and the second substrate 11B of the second glittering film face each other. A two-part curable polyurethane adhesive is applied to the surface of the reflective layer 17A of the first glittering film by a gravure coating method so that the thickness after drying becomes 1.5 μm, and then dried. The second substrate 11B surface of the film was overlaid and pressurized, and then allowed to stand at 40 ° C. for 3 days, and then slitted to a width of 1.5 mm with a precision micro slitter machine to obtain a narrow thread as in Example 11. A multi-pattern glittering thread 10 was obtained. The multi-design glitter thread 10 had an overall thickness of approximately 15 μm, and a bright glitter pattern on one surface could be observed brightly on the other surface and a diffraction grating on the other surface.

  (Example 12) Using the first glittering film prepared in Example 4, the above-mentioned ionizing radiation curable resin composition A was gravure-reversed onto the first substrate 11A surface of the glittering film. It was coated with a coater and dried at 100 ° C. to form a relief forming layer 15B having a thickness of 1 μm. Next, a stamper duplicated by 2P method from the diffraction grating is stuck on the relief forming layer surface to an embossing roller of a duplicating apparatus, and is heated and pressed (embossed) with an opposing roller to form a fine uneven pattern. The relief was shaped. Immediately after shaping, it was cured by irradiating with ultraviolet rays using a high-pressure mercury lamp. An aluminum thin film having a thickness of 500 nm is formed on the relief surface of the relief forming layer 15B by vacuum deposition to produce a multi-pattern glitter film as the reflective layer 17B, and slit to a width of 1.5 mm with a precision micro slitter machine. As a narrow thread, the multi-design glitter thread 10 of Example 12 was obtained. The multi-design glitter thread 10 had an overall thickness of approximately 14 μm, and a bright glitter pattern on one side could be observed brightly on the other side and a diffraction grating on the other side.

  (Example 13) Using the first glittering film prepared in Example 4, the above-mentioned ionizing radiation curable resin composition A was applied to the reflective layer 17A surface of the glittering film with a gravure reverse coater. It was coated and dried at 100 ° C. to form a relief forming layer 15B having a thickness of 1 μm. Next, a stamper duplicated by 2P method from the diffraction grating is stuck on the relief forming layer surface to an embossing roller of a duplicating apparatus, and is heated and pressed (embossed) with an opposing roller to form a fine uneven pattern. The relief was shaped. Immediately after shaping, it was cured by irradiating with ultraviolet rays using a high-pressure mercury lamp. An aluminum thin film having a thickness of 500 nm is formed on the relief surface of the relief forming layer 15B by vacuum deposition to produce a multi-pattern glitter film as the reflective layer 17B, and slit to a width of 1.5 mm with a precision micro slitter machine. As a narrow thread, the multi-design glitter thread 10 of Example 13 was obtained. The multi-design glitter thread 10 had an overall thickness of approximately 14 μm, and a bright glitter pattern on one side could be observed brightly on the other side and a diffraction grating on the other side.

  (Example 14) Using the multi-pattern glitter thread produced in Example 13, the thickness after drying a two-component curable polyurethane adhesive on the surface of the reflective layer 17B by a gravure coating method becomes 1.5 μm. After coating and drying as described above, a 6 μm-thick Lumirror 6CF53 (PET film product name, manufactured by Toray Industries, Inc.) is used as the second support substrate 30B, and the second support substrate 30B is bonded to the urethane adhesive. The layers were pressed together and then left to stand at 40 ° C. for 3 days, and then slitted to a width of 1.5 mm with a precision micro slitter machine, and the multi-pattern glittering thread 10 of Example 14 was formed as a narrow thread. Obtained. The multi-design glitter thread 10 had an overall thickness of approximately 22 μm, and a bright glitter pattern on one surface could be observed brightly on the other surface and a diffraction grating on the other surface. In this thread, the second support base material 30B worked as a protective base material, and the durability was good.

(Examples 15 to 28)
The multi-design glittering thread 10 obtained in Examples 1 to 14 is incorporated into a paper stock. 20 parts by mass of NBKP and 80 parts by mass of LBKP were beaten, and 10 parts by mass of white clay, 0.3 part by mass of a paper strength enhancer, 1.0 part by mass of a sizing agent and an appropriate amount of a sulfuric acid band were added to prepare a paper material. Using the stock, two-layer papermaking is carried out at a papermaking speed of 50 m / min with a two-tank circular paper machine. At this time, the hologram surface of the thread manufactured as described above was used as a surface and was flowed to a predetermined position. Next, the wet paper was dehydrated according to a known general method and dried with a dryer, whereby the thread adhered to the base paper 101, and the anti-counterfeit paper which is the glittering multi-pattern formation 100 of the present invention was manufactured.
The obtained anti-counterfeit paper had the thread embedded in the base paper layer in the paper flow direction with the surface of the thread exposed. Holograms can be visually recognized on the thread surface of the anti-counterfeit paper, and when the thread is forcibly peeled off, those using the multi-pattern glittering thread 10 produced in Examples 1 to 14 have a diffraction grating visible on the back surface. Different glittering patterns were clearly observed on both sides. Furthermore, when copying with a color copier, there is no sparkle peculiar to one hologram, completely different from the hologram and copy of the thread, the other diffraction grating also has no peculiar sparkle, and the authenticity can be judged at a glance on both sides. It was. The anti-counterfeit paper using the threads produced in Examples 1 to 9 and 11 to 14 had good durability. Especially, the forgery prevention paper of Examples 1-9 and 14 was favorable.

  (Example 29) The multi-design glittering thread 10 obtained in Example 1 is incorporated into the stock, so that the surface of the thread is exposed and the stock on the back side of the thread is shaded in the flow direction. Except for the above, a forgery-preventing sheet, which is the glitter multi-patterned product 100, was produced in the same manner as in Example 15. In the obtained anti-counterfeit paper, a hologram could be visually recognized on the thread surface, and a glittering diffraction grating could be visually recognized from the thin paper part on the back surface, and different glitter patterns could be clearly observed on both sides.

(Comparative Example 1)
The anti-counterfeit paper, which is a multi-patterned product of glitter, was produced in the same manner as Example 15 using the multi-designed glitter thread obtained in Reference Example 1. When the anti-counterfeit paper is wound, the thread portion has a hump shape and wrinkles are generated from the hump. In addition, the thread portion was raised and lacked a sense of unity as anti-counterfeit paper.

1 is a cross-sectional view of a multi-pattern glitter film showing one embodiment of the present invention. 1 is a cross-sectional view of a multi-pattern glitter film showing one embodiment of the present invention. 1 is a cross-sectional view of a multi-pattern glitter film showing one embodiment of the present invention. 1 is a cross-sectional view of a multi-pattern glitter film showing one embodiment of the present invention. 1 is a cross-sectional view of a multi-pattern glitter film showing one embodiment of the present invention. 1 is a cross-sectional view of a multi-pattern glitter film showing one embodiment of the present invention. 1 is a cross-sectional view of a multi-pattern glitter film showing one embodiment of the present invention. It is the top view and AA sectional drawing of the glittering multiple-pattern formation which show one Example of this invention.

Explanation of symbols

10: Plural design glitter thread 11A, 11B: Base material 13A, 13B: Primer layer 15A, 15B: Relief forming layer 16A, 16B: Relief shape 17A, 17B: Reflective layer 19, 21B: Adhesive layer 25A, 25B: Protective layer 27: Printing 30A, 30B: Support base material 100: Bright multi-patterned product 101: Base paper

Claims (10)

A multi-design glitter thread formed by cutting a multi-design glitter film having at least a first glitter pattern and a second glitter pattern having a different design from the first pattern.   A first glitter film having at least a first substrate, a first relief forming layer and a first reflective layer; and a second glitter film having at least a second substrate, a second relief forming layer and a second reflective layer. The first reflective layer surface and the second reflective layer surface are laminated via an adhesive layer, and the plurality of design glitters having different relief shapes formed in the first relief forming layer and the second relief forming layer A multi-designed glitter thread characterized by cutting a film into narrow widths.   A first glitter film having at least a first substrate, a first relief forming layer and a first reflective layer; and a second glitter film having at least a second substrate, a second relief forming layer and a second reflective layer. The first substrate surface and the second substrate surface are laminated via an adhesive layer, and a plurality of patterns having different relief shapes formed on the first relief forming layer and the second relief forming layer A multi-pattern glitter thread characterized by cutting a glitter film into narrow widths.   A first glitter film having at least a first substrate, a first relief forming layer and a first reflective layer; and a second glitter film having at least a second substrate, a second relief forming layer and a second reflective layer. The first reflective layer surface and the second base material surface are laminated via an adhesive layer, and a plurality of design radiances having different relief shapes formed on the first relief forming layer and the second relief forming layer A multi-pattern glittering thread, which is obtained by cutting a conductive film into narrow widths.   The first substrate has at least a first relief forming layer and a first reflecting layer on one surface of the first substrate, and has at least a second relief forming layer and a second reflecting layer on the other surface. A plurality of pattern glitters obtained by cutting a plurality of pattern glitter films having different relief shapes formed in the first relief forming layer and the second relief forming layer into a narrow width. thread.   At least a first relief forming layer and a first reflection layer are provided on one surface of the first substrate and the first substrate, and at least a second relief forming layer and a second reflection are further provided on the surface of the first reflection layer. A plurality of patterns, wherein a plurality of pattern glitter films having different relief shapes formed in the first relief forming layer and the second relief forming layer are cut into a narrow width. Glitter thread.   The multi-design glittering thread according to claim 1, wherein the designs of the first design and the second design are a hairline design, a line design, a mat design, a hologram, and / or a diffraction grating.   The multi-design glittering thread according to any one of claims 1 to 7, wherein the overall thickness is 4 to 40 µm.   A multi-design glittering thread according to any one of claims 1 to 8, wherein the multi-design glitter thread is provided on at least a part of a base paper. The multi-design glittering thread according to any one of claims 1 to 8, wherein the multi-design glittering thread is formed on the surface of at least one surface of the base paper. Formation.

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